Rolls-Royce Archives
         « Prev  Box Series  Next »        

From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
The manufacturing operations for flanged bearings, comparing American production methods and recommending centrifugal cast bearings.

Identifier  ExFiles\Box 114\2\  scan0126
Date  13th March 1935
  
(3)

Op. 4. In the case of Flanged bearings the Lead Bronze is sheared down to the Steel and removed to facilitate flanging.

Op. 5. Bearings are then flanged and folded in one operation.

The reason the Americans are able to produce the Whitemetal bearings by the Strip process without affecting adhesion of material structure is because they are pre-heated before the folding operation which method cannot be employed in the case of Lead Bronze owing to the low melting point of the lead content.

It will be observed that some of the difficulties the Americans have encountered are owing to the difference of material structure which prompts the recommendation that centrifugal cast bearings should be adopted for Chassis engine Conn. Rods, particularly in view of the fact that hardened crankshafts are standard.

We attach extracts of reports received from the A.C. Spark Plug Co., Flint, Michigan, U.S.A., Cleveland Graphite Bronze Co., Cleveland, Ohio, U.S.A., and the Allison Engineering Company, Indianapolis, Indiana, U.S.A.

RHC.{R. H. Coverley - Production Engineer}
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙